FBV2 2-Button Footswitch for Line 6 Products description:

The Line 6 FBV2 is a 2-button footswitch for Line 6 products.

The Line 6 FBV 2 lets you scroll through the first bank of four presets and is small and light enough to fit in your gig bag. With its ultra-reliable switches and aluminum case, the FBV2 can take all the abuse you can throw at it.